Ultralight Aircraft Parts

Pricing & Ordering

Competition Aircraft: Composite Propellers for Ultralight Aircraft Since 1983

Ultra-Prop Kit Components

Model No. Blades Pitch Blocks Hubs A/N Hardware Hub Spacers
102 2 2 pair 1 pair 4 sets
103 3 3 pair 1 pair 6 sets
104 4 4 pair 1 pair 8 sets
105 5 5 pair 1 pair 10 sets 1 set
106 6 6 pair 1 pair 12 sets 1 set


Ultra-Prop Kit Prices

2-Blade Kit (Model 102) 5.0 lb $250.00
3-Blade Kit (Model 103) 6.5 lb $300.00
4-Blade Kit (Model 104) 8.0 lb $350.00
5-Blade Kit (Model 105) 11.0 lb $450.00
6-Blade Kit (Model 106) 13.0 lb $540.00


Individual Component Prices

Ultra-Prop Blades each, specify LH (P) or RH (T) $75.00
Flange Kit Kit includes flange to match the Ultra-Prop hub, taper locking QD bushing, propeller back-up plate, all hardware and key for straight shafts with 1/4" keyway. Specify shaft diameter range from 3/4" to 1 1/2". $85.00
Flange Kit with Pulley Kit includes flange with pulley to match Ultra-Prop hub, taper lock QD bushing, two propeller backup plates, six tubular spacers, all hardware and key for straight shafts. Specify shaft diameter from 1" to 1 7/16". $125.00
Tiny-Tach New model TT2A.  Universal digital tachometer. One unit. $54.00
Pitch Blocks pairs only
available in 1° increments - 8°-18°
$7.00
Hub Halves each
specify 2, 3, 4 blades
$35.00
Hub Plates each, specify 5 or 6 blade (does not include hub spacers) $45.00
Hub Spacers Six, 5/16" ID x 5/8" OD x 1.85" long steel spacers for 5 and 6 blade propellers $18.00
Propeller Protractor Kit includes Digital Angle Cube, Protractor Clip, and four Spirit Levels. $95.00
Angle Cube Resolution and Repeatability: 0.05 deg, Accuracy +/- 0.1 deg. Standard 9 volt battery. Magnetic base. $60.00
Protractor Clip Universal clip, plastic with spirit level. $45.00
Spirit Level 10 x 10 x 29 mm with 3M Scotch, reusable adhesive strip on one side. $1.00
A/N Hardware Packs each (2 bolts, 2 nuts & 4 washers) $4.00
Bolt Sleeves 1 set of 6 per pack (1/4" I.D. x 5/16" O.D.) $6.00
Spinner Kit Kit includes white polyester spinner, mounting bracket, and all extra hardware for installation. Specify Quicksilver MX belt drive type with 1/4 inch mounting hardware or Rotax gear drive with 5/16 or 8 mm mounting hardware. $60.00*
Spinner White polyester spinner only (bracket required to install). $40.00
Spinner Bracket Spinner mounting bracket only. Specify Quicksilver MX belt drive type with 1/4 inch mounting hardware or Rotax gear drive with 5/16 or 8 mm mounting hardware. $20.00

*$45.00 when ordered with propeller kit

Ordering Information

The Ultra-Prop and all above components and kits can be ordered through Competition Aircraft by phone, e-mail, fax, or by mail. If you need assistance in selecting the best Ultra-Prop propeller for your ultralight aircraft or airboat application, please contact us and be sure to provide the following information.

  • Vehicle model or type
  • Engine manufacturer and model (HP and RPM)
  • Reduction type and ratio
  • Maximum propeller diameter
  • Direction of rotation - viewed from behind vehicle


  • Special notes:
  • Complete Assembly Instructions and decals are included with each kit.
  • Shipping is by UPS, unless otherwise specified.
  • Prices, specifications, and performance data are subject to change.


  • We accept Mastercard, Visa, Discover Card, and American Express as well as personal checks and Paypal payments.


    Competition Aircraft, Inc.
    10925 Shire Court
    Grass Valley, CA 95949
    Toll Free: 888-634-9839
    Voice: 530-268-3048 Fax: 530-268-2321
    ultra-prop@competitionaircraft.com



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